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A281076 as a simple table

na(n)
10
224
3244
4958
53330
610474
730808
886860
9237624
10636256
111676876
124366076
1311259114
1428808224
1573230526
16185121918
17465742070
181166862594
192912703062
207246920604
2117978001450
2244482281206
23109799225938
24270440705450

[0,24,244,958,3330,10474,30808,86860,237624,
 636256,1676876,4366076,11259114,28808224,73230526,
 185121918,465742070,1166862594,2912703062,
 7246920604,17978001450,44482281206,109799225938,
 270440705450]